1
22
23 package com.liferay.portlet.journal.util.comparator;
24
25 import com.liferay.portal.kernel.util.DateUtil;
26 import com.liferay.portal.kernel.util.OrderByComparator;
27 import com.liferay.portlet.journal.model.JournalArticle;
28
29
35 public class ArticleDisplayDateComparator extends OrderByComparator {
36
37 public static String ORDER_BY_ASC = "displayDate ASC, version ASC";
38
39 public static String ORDER_BY_DESC = "displayDate DESC, version DESC";
40
41 public static String[] ORDER_BY_FIELDS = {"displayDate", "version"};
42
43 public ArticleDisplayDateComparator() {
44 this(false);
45 }
46
47 public ArticleDisplayDateComparator(boolean asc) {
48 _asc = asc;
49 }
50
51 public int compare(Object obj1, Object obj2) {
52 JournalArticle article1 = (JournalArticle)obj1;
53 JournalArticle article2 = (JournalArticle)obj2;
54
55 int value = DateUtil.compareTo(
56 article1.getDisplayDate(), article2.getDisplayDate());
57
58 if (value == 0) {
59 if (article1.getVersion() < article2.getVersion()) {
60 value = -1;
61 }
62 else if (article1.getVersion() > article2.getVersion()) {
63 value = 1;
64 }
65 }
66
67 if (_asc) {
68 return value;
69 }
70 else {
71 return -value;
72 }
73 }
74
75 public String getOrderBy() {
76 if (_asc) {
77 return ORDER_BY_ASC;
78 }
79 else {
80 return ORDER_BY_DESC;
81 }
82 }
83
84 public String[] getOrderByFields() {
85 return ORDER_BY_FIELDS;
86 }
87
88 public boolean isAscending() {
89 return _asc;
90 }
91
92 private boolean _asc;
93
94 }